Properties of Acrylates and UV-Curing Adhesives

The mechanical and electrical properties of acrylates are similar to those for many otherpol5miert5q)es. Tensile strengths range from approximately 1,300 psi to 4,500 psi and shear strengths of PCB lap samples range from 424 to 566 psi. Aluminum-to-aluminum lap-shear strengths are reported at approximately 3,000 psi. Electrical volume resistivities under room ambient conditions ranged from 1 x 10 ohm-cmto 1.4 x lO ohm-cm. dielectric constants from 3.15 to 3.43 at 10 MHz and dissipation factors 

Other properties of UV-cured adhesives of benefit to the electronics industry are that they are one-part systems, 100% solids (no solvents), and can be stored at room temperature. 

Property Thermally Conductive Paste ElectricaUy Conductive Paste 

Filler type percent Boron nitride, 40% Silver, 80% 

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